An upper extreme is the highest number on the number line give. So the Upper extreme is 11
Answer:
73.386765
Step-by-step explanation:
This is pretty easy.
An exponent in this case shows how many zeros there should be, or how many places the decimal place be moved to the right (left if exponent's negative).
1. 42,000,000
2. 80
3. 3 x 
4. 7 x 
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